Fountain-pen.



M. S. OLSEN.

FOUNTAIN PEN.

APPLICATION FILED APB.12,1910.

Patented Jan.31, 1911.

ATTORNEYS of which the and T/IATTl-IE'W S. OLSEN, OF HARVEY, NORTHDAKOTA.

' FOUNTAIN-PEN.

Application filed April 12 To all whom ii may concern:

l lo it known that It. MATTH W S. Onsnn, a citizen of the United States.and a resident of Harvey, in the county of li ells and State of NorthDakota, have made certain new and useful Improvements in TSmrntain-Pcns,

following is a specifics tion.

My invention relates to sclf-fillablc nonleakablc 'tountain pens, and itconsists in the constructions, c inl'iii'iat-ions and arrangw mcntsherein doscribd and claimed. 7

An object of my invention is to provide a fountain pen having simpleandconvenient means for filling the pen which will accomplish the fillingoperation rapidly.

A further object of my invention is to provide a ievi cc whico. isabsolutely n0nlcakablc when carried in the pocket, and in larly pointedout in the parts constituting the barrel.

which started. v

A. further object of my ll'lVQll't'iOll' is to provide a pen in whichthe flow of ink may be adjusted to suit tin; requirements of the user.

A. further object/oi my invention is to provide a device having fewparts and of comparatively small cost of manufacture.

A further object of my invention is to provide a pen with a largercapacity for ink than usual. Y

Other objects and advantages will appear from the followingspecification, and the novel features of the device will be particuappended claims.

My invention is illustrated in the accompanying drawinos in which:

Figure l is a side view of the assembled Fig. Q is a longiti'ulinalsection through the device shown in Fig. 1. Fig. 3 is a similar sectionshowingthe inner cylinder pulled out for filling the pen. Fig. l isan'end. view of the device, the feed end oi the pen being rethe ilow ofink may be readily moved, and Fig. 5 is a sectional, View showing amodified form.

Referring now more particularly to Fig. 2, I have shown therein an outercylinder A which constitutes the main portion of the barrel. ends, 011the end a is secured a sleeve B having; an inwardly extending flange 7)and an outwardly extending flange If. The sleeve B is also threadedinternally to rceeive the threaded end of a cap C. The lat ter issecured to an inner cylinder D which extends through the cylinder A andis pro- Specifieation of Letters Patent.

This cylinder is threaded at both Patented Jan. 31, 1911. Serial No.554,997.

'f vidcd with a slightly enlarged end drwhich fitssnugly to the interiorof the cylinder A. Centrally disposed of the cylinder D is a tube Ewhose end 0 extends into a recess 0 when the cap 0 is screwed into thesleeve The pipe E is provided with a guide member F which is designed tocenter the pipe Within the cylinder. The opposite end of the pipe E" isprovided with an enlarged h'oad E having a circular flange 6 providedwith feed openings 0 and terminating in a conical valve member E havinga central passage 6 thercthrough communicating with the interior of thepipe E. 1

Adapted to be screwed to the cnd a of the barrel A is afced cap Gprovided with a central opening 9 and havin a. recess 9 arrsngcd to seatthe valve mom or E.

The screw cap G is provided with a flange .lrl for limiting the positionof a cap (not shown) whicl'i may be placed over-the pen poiiiit P whenthe device is carried in the locket. 1 From the foregoing description ofthe various parts of the device the operation thereof may be readilyunderstood. Vith the pen assembled as in Fig. 2 the operation of fillingit is accomplished as follows'i The pulled outwardly, the end of thescrew cap G being first inserted in an ink-Well. The

causes the valve .E" to unseat so as to allow the ink to tlow throughthe opening 9 into .the ink space I surrounding the tube E. The movementof the head 6 is limited by coming in contact with the end of the barrelA. It'will be observed, however, that the openings 6, extend radiallytoward. the center (see Fig. 4) and that they are, therefore, not closedby the end of the barrel. Now when the cap C and the cylinder D arepushed inwardly again the air escapes hrough the-tubc E and through theopen- ,mg g with which the tube E communicates. The valve E however,resents itself and prevents the ink from escaping. If the pen has notbeen filled by one stroke, 0t 1e1- strokes are made until the ink isalso forced out through the central tube E into the ink well. lVhcn.this' is accomplished the cap 0 may be screwed into the sleeve B untilthe valve E is forced to scat itsclt. The ink in the pen cannot possiblyescape since the end of the pipe E is closed and the valve E is alsoclosed. Now when it is desired to use .cap- C is unscrewed it'rcm thesleeve B and is movement of this cap C and the cylinder D opening 6.

the pen the cap C is unscrewed, one-half to two turns being made. Sincethe cylinder D is secured to the cap C, the enclof the cylinder will bewithdrawn from the head which unsezits the valve E and permits the inkto flow through the feed opening 91, the feed of the inlr beingregulated by the amount the cap C 18 turned. The suoulder or hinge 5 onthe sleeve prevents the inner cylinder D from. being withdrawn entirelyfrom the by the engagement of theii, re with the head 1:5, and alsoserves to lioio packing in cavity-cf flange 732, in order to make thejoint perfectly tight around the cylinders in Fig. 5 l have shown emodified form in which the outer cylinder A is provided with a threadedend if having the central iced opening [V and the side feed openings A".The head a is tapered as shown in the drawings A screw cap E l isprovided having conical c and a central feed The cup is screw threadedto engage the heed a". A locking ring or nut N provided which screws onthe heud a. r

. the operation to that of the 0th lhc pen is tilled by pulling; thecylinder 1) outwardly and sucking up the ink throug the. centrul opening0 in to the ink space the screw cup E" being first screwed down firmlyagainst the l head a th creliy closing the side feed openings a whilefilling the pen. In order to keep all the ink from being ejected intothe bottle, when the cylinder l) is forced inwfilldly, the barrel toclose the passages Now, when the tube '3. is pushed in, part or" the inkwill be forced out of the central tube E, but the ink space i will hetilled with ink. The feed of the device is regulated by setting the nut,against which the screw cup 1*)" beers, utdi'lfcrcnt points, so as toprovide inclined food oi ieuings. c of (lii'lercnt size. turu ing thenut so that the cup may engage the head, the feedopenings (5 may heclosed this form is similar A is given a few turns 5 se-3,1c5

2. In u fountain pen in outer cylinder, un-

inncr cylinder sliduoly disposed therein, a screw (up arranged to besecured to said outer cylinder and 'irovided with :1 feed openin meansfor closing said feed opening, a hollow pipe centrally disposed withinsaid inner cylinde' and adapted to connnunicate with said feed opening,a, closure for thc'cno of said cylinder and a screw cap ,tor securingsaid closure to said outer cylindcrl 3. .ln a fountain pen an outercylinder, an inner cylinder slidably disposed therein, 11 screw caparranged to be secured to suid outer cylinder and provided with a feedopening, 11 valve for closing said feed opening, :1 hollow pipecentrzilly disposed within suid'inner cylinder and adapted tocolumnnicate with said feed opening, and aclosure for the end of saidinner cylinder.

+2. in u fountain pen, an outer cylinder, an inner cylinder slicluhlydisposed therein; a screw cap arranged to he secured to said outercylinder and provided with a feed opening. u mlve for closing said feedopening. and 2: air tube for permitting the es:

cape oliuir when the inner cylinderisinovcd.

MATTHEW S. OLSEN. Witnesses ,lxo, Li BLANCH, RUTH Bonus.

